US2601027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tube support and cooling device
Assignee: General Electric Co
•
Filing: 1948-03-09
•
Granted: 1952-06-17
•
Expires: 1968-03-09
Abstract
No abstract record available.
Inventors
- 👤 Donald B Keim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:57
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1800827A
Cited
US2134788A
Cited
US2246722A
Cited
US2305934A
Cited
US2342475A
Cited
US2392410A
Cited
US2325770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |